<script setup>
import {computed, reactive, ref} from "vue";
import {User, Lock, Message, Edit} from "@element-plus/icons-vue";
import router from "@/router";
import {get, post} from "@/net";

const form = reactive({
  username: '',
  password: '',
  password_repeat: '',
  email: '',
  code: ''
})
const codeTime = ref(0)

const formRef = ref()
const validatorUsername = (rule, value, callback) => {
  if (value === '') {
    callback(new Error("用户名不能为空"))
  } else if (!/^[a-zA-Z0-9\u4e00-\u9fa5]+$/.test(value)) {
    callback(new Error("用户名不能包含特殊字符，只能是中/英文"))
  } else {
    callback()
  }
}

const validatorPassword = (rule, value, callback) => {
  if (value === '')
    callback(new Error("请再次输入密码"))
  else if (value !== form.password)
    callback(new Error("两次输入的密码不一致"))
  else callback()
}

const rules = {
  username: [
    {validator: validatorUsername, trigger: ['blur', 'change']}
  ],
  password: [
    {required: "true", message: '请输入密码', trigger: 'blur'},
    {min: 6, max: 20, message: '密码的长度要在6~20个字符之间', trigger: ['blur', 'change']}
  ],
  password_repeat: [
    {validator: validatorPassword, trigger: 'blur'},
  ],
  email: [
    {required: "true", message: '请输入邮件地址', trigger: 'blur'},
    {type: 'email', message: '请输入正确的邮箱地址', trigger: ['blur', 'change']}
  ],
  code: [
    {required: "true", message: '请输入验证码', trigger: ['blur', 'change']},
    {pattern: /^[0-9]{6}$/, message: '验证码必须是六位数字', trigger: 'blur'}
  ]
}

function askCode() {
  if (isEmailValid) {
    codeTime.value = 60
    get(`/api/auth/ask-code?email=${form.email}&type=register`, () => {
      ElMessage.success(`验证码已发送到您的邮箱：${form.email}，请注意查收`)
      setInterval(()=>{
        codeTime.value--
      },1000)
    },(message)=>{
      ElMessage.warning(message)
      codeTime.value=0
    })
  } else
    ElMessage.warning('验证码发送失败，请稍后再试')
}

const isEmailValid = computed(
    () => /^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/.test(form.email)
)

function register(){
  formRef.value.validate(valid => {
    if(valid){
      post('/api/auth/register',{...form},()=>{
        ElMessage.success('注册成功，欢迎加入我们')
        router.push('/')
      })
    }else {
      ElMessage.warning('请完整填写注册信息')
    }

  })


}

</script>

<template>
  <div style="text-align: center;margin:0 20px">
    <div style="margin-top: 100px ">
      <div style="font-size: 25px;font-weight: bold;">注册新用户</div>
      <div style="font-size: 14px ; color: gray">欢迎注册我们的平台，请在下方填写相关信息</div>
    </div>
    <div style="margin-top: 50px">
      <el-form :model="form" :rules="rules" ref="formRef">
        <el-form-item prop="username">
          <el-input v-model="form.username" type="text" maxlength="10" placeholder="用户名">
            <template #prefix>
              <el-icon>
                <User/>
              </el-icon>
            </template>
          </el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input v-model="form.password" type="password" maxlength="20" placeholder="密码">
            <template #prefix>
              <el-icon>
                <Lock/>
              </el-icon>
            </template>
          </el-input>
        </el-form-item>
        <el-form-item prop="password_repeat">
          <el-input v-model="form.password_repeat" type="password" maxlength="20" placeholder="重复密码">
            <template #prefix>
              <el-icon>
                <Lock/>
              </el-icon>
            </template>
          </el-input>
        </el-form-item>
        <el-form-item prop="email">
          <el-input v-model="form.email" type="email" placeholder="电子邮件地址">
            <template #prefix>
              <el-icon>
                <Message/>
              </el-icon>
            </template>
          </el-input>
        </el-form-item>
        <el-form-item prop="code">
          <el-row :gutter="10" style="width: 100%">
            <el-col :span="17">
              <el-input v-model="form.code" type="text" maxlength="6" placeholder="请输入验证码">
                <template #prefix>
                  <el-icon>
                    <Edit/>
                  </el-icon>
                </template>
              </el-input>
            </el-col>
            <el-col :span="5">
              <el-button @click="askCode" :disabled=" !isEmailValid || codeTime" type="success">
                {{ codeTime > 0 ? `请稍后${codeTime}秒` : '获取验证码' }}
              </el-button>
            </el-col>
          </el-row>
        </el-form-item>
      </el-form>
    </div>
    <div style="margin-top: 80px">
      <el-button type="warning" @click="register" style="width: 250px" plain>立即注册</el-button>
    </div>
    <div style="margin-top: 20px">
      <span style="font-size: 14px;line-height: 15px;color: gray">已有账号？</span>
      <el-link style="translate: 0 -1px" @click="router.push('/')">立即登录</el-link>
    </div>
  </div>

</template>

<style scoped>

</style>